Benzoyl Peroxide → 2-[4-(Bromomethyl)-3-methoxyphenyl]-1,3-benzoxazole

関与物質

反応手順

2-(3-Methoxy-4-methylphenyl)-1,3-benzoxazole (1.0 g, 4.1 mmol), carbon tetrachloride (18 mL), benzoyl peroxide (66 mg, 0.3 mmol) and N-bromosuccinimide (970 mg, 5.4 mmol) was heated to reflux conditions under argon and placed under a UV light. After 1 h, no starting material was observed by TLC. After cooling mixture to rt, filtered, washing with dichoromethane. After concentrating filtrate in vacuo, the resulting colorless solid was purified by flash chromatography, using a gradient elution of 1:4 EtOAc:hexanes to EtOAc. This afforded the desired intermediate, 2-[4-(bromomethyl)-3-methoxyphenyl]-1,3-benzoxazole, as a colorless solid.

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